1_Trinh bay cach pha 300ml dung dich PBS 10X voi cac thanh phan ben bang duoi:
2_Trinh bay cach pha 500ml dung dich PBS-tween (tween 5% su dung dung dich me o tren)
NaCl(58,44) PBS 1X (mol/l) la 137
KCl (74,55) ,, 2,7
Na2HPO4.2H2O(178.05) ,, 10
KH2PO4(136.09) ,, 2.0